Hosta 'Blue Mammoth'
(Photo courtesy of NetPS Plant Finder)
Plant Height: 28 inches
Flower Height: 4 feet
Spacing: 30 inches
Hardiness Zone: 2a
Other Names: Plantain Lily, Funkia
Blue Mammoth Hosta features dainty spikes of white bell-shaped flowers rising above the foliage in mid summer. Its attractive enormous textured round leaves emerge powder blue in spring, turning blue in color throughout the season. The fruit is not ornamentally significant.
Blue Mammoth Hosta is a dense herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its wonderfully bold, coarse texture can be very effective in a balanced garden composition.
This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
Blue Mammoth Hosta is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
Planting & Growing
Blue Mammoth Hosta will grow to be about 28 inches tall at maturity extending to 4 feet tall with the flowers, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 30 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.
This plant does best in partial shade to shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.